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The function of the Birco linear drainage system is to intercept, store and transport surface water. For normal surface water drainage there are six different Birco systems.

A range of reduced depth channels available in four invert widths of 100, 150, 200 and 300 mm. Shallow channels are fully compatible with the respective channels, gratings, covers, outfalls etc. of same invert width from the Birco range. Shallow invert channels are normally supplied to special order. Solid covers in galvanized cast iron are available to suit all channels.

General information
Specification data
Product Reference

Birco Shallow

Channel width

100 mm

150 mm

300 mm

Channel invert depth

20 mm

40 mm

50 mm

80 mm

130 mm

180 mm

Gratings -

8 mm Ø perforated galvanized steel

30 x 15 mm galvanized mesh

30 x 30 mm galvanized mesh

30 x 30 mm stainless steel mesh

80 x 6 mm stainless steel slot

80 x 12 mm stainless steel slot

100 x 6 mm 'Heelsure' lite cast iron slot

100 x 12 mm aluminium slotted

100 x 12 mm cast iron slot

Eclipse, cast iron


500 mm

1000 mm

Standard product features

Channel size:

160 mm wide x 1000 mm long.

Grating fixings:

Bolted to locking bars.

Grating loading grade:

  • Galvanized: Class A/ B/ C/ D/ E to BS EN 1433: 2002.
  • Cast iron: Class A/ B/ C/ D/ E to BS EN 1433: 2002.
  • Heelsure: Class A/ B/ C/ D/ E to BS EN 1433: 2002.


Cast iron gratings can be colour coated to special order.

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